With a young child enamored with vehicles of all types, I came up with the front end loader design shown when thinking of the perfect gift. Laser cut from 1/8" baltic birch with a few dowels for axles and pivots and held together with wood glue the result is pretty sturdy. The assembly measures about 11 inches long, 4 inches wide and 5 inches tall, has rolling wheels, pivoting lift arm, articulated body, and functional 6-bar linkage based bucket tilt mechanism. Design time in Solidworks was about 25 hours, cut time about 40 minutes, and assembly around 4 hours. Let me know what you think!
UPDATE: If you want to the .eps files to cut this yourself, you can get them on Ponoko in a variety of configurations at the link below (for a nominal fee). I have the original 1/8" baltic birch and modified 1/4" baltic birch plywood plans currently available. These plans require dowels to finish.
Front End Loader Plans on Ponoko
I have an all-laser-cut option that is a bit more complicated and doesn't quite move as nicely as the dowel version but is all-in-one for those not interested in buying dowels.
All-laser front end loader plans at Wooden Marvels.
but on the other had, this is freaking awesome. If this was designed in cad, i would definitly do this. My college has laser cutter uses cad files to process cuts.
If you do order from Ponoko, let me know how it goes. The successful building of this is pretty dependent on thickness of the stock cut and laser kerf. I've got a supplier of uniform baltic birch in 1/8" that I use with good success and I modified the Ponoko files to work as best as I could but it has been a long time since I used their materials and do not have a recent calibration on the current thickness tolerances. Are you looking at the thicker wood? If so, the resultant model will be a lot bigger. Awesome.
http://www.ponoko.com/make-your-own/toys/frontend-loader-toy-3-2mm-p3-5109
Thanks for reading.
8>)
Can we see the cad files? :-)